149687 has 4 divisors (see below), whose sum is σ = 150696. Its totient is φ = 148680.

The previous prime is 149629. The next prime is 149689. The reversal of 149687 is 786941.

149687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 149687 - 2⁶ = 149623 is a prime.

It is a Duffinian number.

Its product of digits (12096) is a multiple of the sum of its prime divisors (1008).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233 + ... + 594.

It is an arithmetic number, because the mean of its divisors is an integer number (37674).

2¹⁴⁹⁶⁸⁷ is an apocalyptic number.

149687 is a deficient number, since it is larger than the sum of its proper divisors (1009).

149687 is an equidigital number, since it uses as much as digits as its factorization.

149687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008.

The product of its digits is 12096, while the sum is 35.

The square root of 149687 is about 386.8940423423. The cubic root of 149687 is about 53.0959458201.

The spelling of 149687 in words is "one hundred forty-nine thousand, six hundred eighty-seven".